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Energy Net

Richard Heinberg's MuseLetter: New Coal Technologies | Global Public Media - 0 views

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    For coal, the future of both extraction and consumption depends on new technology. If successfully deployed, innovative technologies could enable the use of coal that is unminable by gasifying it underground; reduce coal's carbon emissions; or allow coal to take the place of natural gas or petroleum. Without them, coal simply may not have much of a future. Are these technologies close to development? Are they economical? Will they work?
Energy Net

EEStor Technology: The End of Batteries? - 0 views

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    (NaturalNews) For decades, battery storage technology has been a heavy weight on the back of scientific innovation. From cell phones to electric vehicles, our technological capabilities always seem to be several steps ahead of our ability to power them. Several promising new technologies are currently under development to help power the 21st century, but one small start-up looks especially well positioned to transform the way we think about energy storage.
Energy Net

Technology Spotlight: Wind Turbines - Renewable Energy World - 0 views

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    At the recently held EWEC 2009 wind energy conference and exhibition most exhibitors agreed that while there has been a substantial business slowdown due to problems linked to obtaining wind project financing, an upturn in demand during the second half of 2009 is beginning to play out, at least in the U.S. Other exhibitors, on the other hand, were a bit more cautious pointing out that substantial numbers of unsold turbines from framework contracts failing to secure project finance are now floating on the wind market. Most interesting from a wind technology point of view is the V112-3.0MW switch away from a compact V90-3.0MW integrated gearbox and main bearing assembly to a 3-point gearbox support. The application of a permanent magnet (PM) type generator with full converter system in the V112-3.0MW is new for Vestas but not for the wind industry. New Technology Trends In what many wind industry insiders consider a major development trend, French aerospace companies EADS Astrium & EADS Composite Aquitaine announced their formal entrance into the wind industry. The French companies offer the wind industry advanced composite materials engineering, manufacturing and related know-how as well as rotor-blade manufacturing capacity.
Energy Net

Peak Energy: Electricity from Waste Heat - 0 views

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    Technology Review has an article on a new system from Ener-G-Rotors which harvests energy from low temperature waste heat - Electricity from Waste Heat. Factories, data centers, power plants--even your clothes dryer--throw off waste heat that could be a useful source of energy. But most existing heat-harvesting technologies are efficient only at temperatures above 150 °C, and much waste heat just isn't that hot. Now Ener-G-Rotors, based in Schenectady, NY, is developing technology that can use heat between 65 and 150 °C.
Energy Net

Opportunities seen widening for clean tech investors: ENN - 0 views

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    Opportunities in the renewable energy technology sector are becoming more diverse as regulatory support extends to technologies other than wind farms, Steve Read, investment manager of the Ventus Funds, said. Read said the Ventus Funds, venture capital trusts operated by Climate Change Capital, are spreading their investments more evenly between wind farm projects and other renewable energy technologies such as land-fill gas and waste biomass.
Energy Net

Peak Energy: Better Wind Turbines - 0 views

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    Technology Review has an article on advances in wind turbine technology - Better Wind Turbines. ExRo Technologies, a startup based in Vancouver, BC, has developed a new kind of generator that's well suited to harvesting energy from wind. It could lower the cost of wind turbines while increasing their power output by 50 percent. The new generator runs efficiently over a wider range of conditions than conventional generators do. When the shaft running through an ordinary generator is turning at the optimal rate, more than 90 percent of its energy can be converted into electricity. But if it speeds up or slows down, the generator's efficiency drops dramatically. This isn't a problem in conventional power plants, where the turbines turn at a steady rate, fed by a constant supply of energy from coal or some other fuel. But wind speed can vary wildly. Turbine blades that change pitch to catch more or less wind can help, as can transmissions that mediate between the spinning blades and the generator shaft. But transmissions add both manufacturing and maintenance costs, and there's a limit to how much changing the blade angle can compensate for changing winds.
Energy Net

Environmental Factors and Low Cost Propel the European Flywheel UPS Market Forward - 0 views

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    Amid growing concerns over the preservation of the environment, the quest for energy efficient and greener technologies is intensifying in Europe, especially after the signing of the Kyoto Protocol. Green initiatives have encouraged the gravitation towards environmentally friendly technologies such as flywheel UPS systems. The European Commission energy efficiency action plan has also helped drive the uptake of flywheel UPS systems. New analysis from Frost & Sullivan (http://www.powersupplies.frost.com), European Flywheel UPS Markets, finds that market earned revenues of over €25.4 million in 2007 and estimates this to reach €58 million in 2014. "Although the technology has been in existence for a long time, it has seen widespread acceptance and increased uptake only over the past three or four years," says Frost & Sullivan programme manager Malavika Tohani. "Flywheel UPS systems use kinetic energy, eliminating harmful emissions and disposal issues and reducing the impact on the environment."
Energy Net

Peak Energy: Cutting Coal Use with Solar Thermal Power - 0 views

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    Technology Review reports that the idea of hybrid gas-solar thermal power plants is being considered for coal fired plants now - Cutting Coal Use with Sunshine. Feeding heat from the sun into coal-fired power stations could turn out to be the cheapest way to simultaneously expand the use of solar energy and trim coal plants' oversize carbon footprints. At least that's what the Electric Power Research Institute (EPRI), a nonprofit organization backed by the electricity industry, is hoping. Last week, the institute launched a nine-month, $640,000 study to pin down the scale of the opportunity and the engineering challenges involved with making these seemingly disparate technologies work together. The study will examine the potential use of solar-thermal technology at a pair of coal-fired power stations, in New Mexico and North Carolina.
Energy Net

Peak Energy: Passive Solar Thermal Energy In Europe - 0 views

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    Renewable Energy World has an article on a plan to greatly expand the use of passive solar thermal energy in Europe - Action Plan for 50%: How Solar Thermal Can Supply Europe's Energy. The research efforts and infrastructure needed to supply 50% of the energy for space and water heating and cooling across Europe using solar thermal energy has been set out under the aegis of the European Solar Thermal Technology Platform (ESTTP). Published in late December 2008, more than 100 experts developed the Strategic Research Agenda (SRA), which includes a deployment roadmap showing the non-technological framework conditions that will enable this ambitious goal to be reached by 2050. A strategy for achieving a vision of widespread low-temperature solar thermal installations was first explored by ESTTP in 2006, but since then the SRA has identified key areas for rapid growth. These focus points include the development of active solar buildings, active solar renovation, solar heat for industrial processes and solar heat for district heating and cooling. Meanwhile, amongst the main research challenges is the development of compact long-term efficient heat storage technology. Once available, they would make it possible to store heat from the summer for use in winter in a cost-effective way.
Energy Net

Department of Energy - Vice President Biden Outlines Funding for Smart Grid Initiatives - 0 views

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    Announces plans for nearly $4 billion in technology deployment, monitoring and viability Washington, DC - Vice President Joe Biden, on a visit to Jefferson City, Missouri, today with Commerce Secretary Gary Locke, detailed plans by the Department of Energy to develop a smart, strong and secure electrical grid, which will create new jobs and help deliver reliable power more effectively with less impact on the environment to customers across the nation. As part of the American Recovery and Reinvestment Act, the Vice President outlined plans to distribute more than $3.3 billion in smart grid technology development grants and an additional $615 million for smart grid storage, monitoring and technology viability.
Energy Net

Peak Energy: Concentrated solar power could generate 'quarter of world's energy' - 0 views

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    The Guardian has an article on a report from Greenpeace, the European Solar Thermal Electricity Association and the International Energy Agency's SolarPACES group on the potential for solar thermal power to supply a large proportion of our energy needs (why they limit it to 25% is a mystery to me) - Concentrated solar power could generate 'quarter of world's energy'. Solar power stations that concentrate sunlight could generate up to one-quarter of the world's electricity needs by 2050, according to a study by environmental and solar industry groups. The technology, best suited to the desert regions of the world, could also create hundreds of thousands of new jobs and save millions of tonnes of CO2 from entering the atmosphere. Concentrating solar power (CSP) uses mirrors to focus sunlight onto water. This produces steam that can then turn turbines and generate electricity. It differs from photovoltaics, which use solar panels to turn sunlight directly into electricity and can operate even on overcast days. CSP only works in places where there are many days with clear skies and is a proven, reliable technology. At the end of 2008 CSP capacity was around 430MW, and worldwide investment in the technology will reach
Energy Net

Arizona Rep. Giffords authors U.S. Solar Roadmap bill as CA plows ahead - 0 views

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    In continued efforts to promote clean energy, U.S. House Representative Gabrielle Giffords (D-AZ) has introduced the Solar Technology Roadmap Act, which is now on its way to the full House after achieving commendable bipartisan support after short deliberation in the Science and Technology Committee. Giffords' bill would designate the U.S. Department of Energy (DOE) as the leading organization for developing a strategic plan to direct solar energy research and its deployment into the commercial sector. The legislation would also allocate $2.25 billion for solar research over the next five years, which is a far cry from the pro-oil Bush administration that pillaged funding for renewables.
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    In continued efforts to promote clean energy, U.S. House Representative Gabrielle Giffords (D-AZ) has introduced the Solar Technology Roadmap Act, which is now on its way to the full House after achieving commendable bipartisan support after short deliberation in the Science and Technology Committee. Giffords' bill would designate the U.S. Department of Energy (DOE) as the leading organization for developing a strategic plan to direct solar energy research and its deployment into the commercial sector. The legislation would also allocate $2.25 billion for solar research over the next five years, which is a far cry from the pro-oil Bush administration that pillaged funding for renewables.
Energy Net

Department of Energy - DOE Announces Investment of up to $84 Million in Geothermal Energy - 1 views

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    U.S. Department of Energy Secretary Steven Chu today announced the release of two Funding Opportunity Announcements (FOAs) for up to $84 million to support the development of Enhanced Geothermal Systems (EGS). Geothermal energy technologies use energy from the earth to heat buildings and generate electricity. Enhanced Geothermal Systems offer the potential to extend geothermal resources to larger areas of the western United States, as well as into new geographic areas of the entire country. These projects will help support the Administration's efforts to invest in clean energy technologies, create millions of new jobs, end our addiction to foreign oil, and address climate change. "President Obama has laid out an ambitious agenda to put millions of people to work by investing in clean energy technology like geothermal energy," said Secretary Chu. "The Administration is committed to funding important research like this to transform the way we use and produce energy and reduce our dangerous dependence on foreign oil."
Energy Net

iGo Debuting Energy Efficient Chargers at CES 2009 : TreeHugger - 0 views

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    iGo Technologies provides solutions for charging up gadgets more efficiently by ditching standby power. They're debuting a few more cool looking products at the upcoming CES. Read on for a glimpse of what tech we'll get to see in just a couple weeks. Three products iGo is planning on showing off are: - iGo Laptop Charger: Charge your laptop and other devices from any standard wall outlet, including automatic shut-off and recovery to reduce vampire power. - iGo Surge Protector: An eight outlet surge protector with shut-off and recovery to reduce vampire power. - iGo Wall Outlet: A wall outlet with automatic shut-off and recovery.
Energy Net

NEC to Feature Top 100 Clean Energy Technologies at 2nd Environmental Hall of Fame - 0 views

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    The second Environmental Hall of Fame ceremony will be held in Chicago beginning tomorrow through Saturday, Nov. 20-22. Among the environmental celebrities to be honored are Pierc Brosnan (James Bond) and his wife, who have been activists in the movement. Two of the New Energy Congress' Global Top 100 Clean Energy Technology companies will also receive awards: Stirling Energy Systems, a concentrated solar technology that heats a highly-efficient Stirling engine, has been in first place in the Top 100 for over a year. Green Power Inc., which is commencing commercial production of a 100 ton per day municipal waste-to-diesel plant, recently rose to 15th place on the Top 100 list.
Alex Parker

Troubled waters - new developments in oil spill cleanup technology - 1 views

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    We round up the most innovative oil spill recovery technologies including a chemically modified nanocellulose sponge from Switzerland's Empa, new research into bacteria from the University of East Anglia, and other technological and theoretical breakthroughs. Rod James investigates.
Energy Net

Salt-Free Solar: CSP Tower Using Air - Renewable Energy World - 0 views

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    Concentrating solar power (CSP) is an emerging technology that offers the potential to supply utility-scale peaking power competitively. In December 2008, a 1.5 MWe solar thermal central receiver system was declared operational by plant construction company Kraftanlagen Munchen. Although solar tower technology had been built as early as the 1970s and a second commercial tower is now close to completion (see REW magazine July/August 2008) the so-called Test and Demonstration Power Plant Julich, in Germany, is the world's first solar thermal power plant erected which uses air as the medium for heat transport. In all previous plants liquid media such as molten salt or oil have been used for the obvious reason of their high specific heat capacity, which in turn results in low volume flow rates and low pumping losses.
Energy Net

Solar Power Home Now - 0 views

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    As traditional energy sources become increasingly rare and expensive, many homeowners are turning to the skies and learning how to harness energy from the sun. Solar cell technology has been around since the 1950s, but technology has improved considerably and at current levels of efficiency it is worth taking the time and effort to consider a Solar Power Home Now Solar cells are also called photovoltaics, or PV, by the boffins. In basic terms, they are made of semi conducing materials, which, when exposed to the sun go through a distinct process. The solar energy separates the electrons from the atoms within the material and the movement of the electrons creates power, or electricity. Thus light (photons) is converted into electricity (voltage).
Energy Net

Deseret News | Full steam ahead on geothermal power generation - 0 views

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    A Provo firm Thursday launched a project that could foreshadow the next revolution in renewable energy resources for Utah and the rest of the nation. Raser Technologies Inc. marked the completion of a 10-megawatt geothermal power plant with a ribbon-cutting ceremony at the Beaver County facility located in Thermo. It is the first commercial-scale facility to utilize a new technology that allows the plant to generate electricity using geothermal heated water that is at a much lower temperature than was previously possible, said John Fox, general manager of UTC Power Corp.
Energy Net

Peak Energy: Ocean currents can power the world - 0 views

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    The (UK) Telegraph has an article on the Vivace tidal / current power device I mentioned recently - Ocean currents can power the world, say scientists The technology can generate electricity in water flowing at a rate of less than one knot - about one mile an hour - meaning it could operate on most waterways and sea beds around the globe. Existing technologies which use water power, relying on the action of waves, tides or faster currents created by dams, are far more limited in where they can be used, and also cause greater obstructions when they are built in rivers or the sea. Turbines and water mills need an average current of five or six knots to operate efficiently, while most of the earth's currents are slower than three knots.
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